Senior ISSE​/Penetration Tester TS​/SCI Polygraph

Description

Leidos has an exciting and challenging opportunity for a Senior ISSE/Penetration Tester in our Intel Sector's Cyber & Analytics Business Area (CABA). Our talented team is at the forefront in Security Engineering, Computer Network Operations (CNO), Mission Software, Analytical Methods and Modeling, Signals Intelligence (SIGINT), and Cryptographic Key Management. At Leidos, we offer competitive benefits, including Paid Time Off, 11 paid Holidays, 401K with a 6% company match and immediate vesting, Flexible Schedules, Discounted Stock Purchase Plans, Technical Upskilling, Education and Training Support, Parental Paid Leave, and much more.

A Senior ISSE/Penetration Tester (ISSE/PT) is needed to provide support for adding new capabilities to a complex system with exacting interface, performance and security requirements. The selected individual will become part of a team of Security Engineers working on solving challenging issues on a large, significant program. The position requires a solid understanding of security practices and policies as well as hands‑on vulnerability testing experience.

The selected individual will collaborate with other engineers and technical experts in providing improvements to our operational, test, integration, and development systems. The ISSE/PT will develop and lead Security Testing Events by conducting penetration testing, publishing results, and researching penetration testing tools to enhance our overall testing capabilities.

• Validating and verifying system security requirements and establishing system security designs for large-scale systems, major system elements, and interfacing systems that are part of a large complex network environment with geographically distributed components.
• Identifying and implementing appropriate information security architectures and functionality to ensure uniform application of security policy and enterprise solutions.
• Recommending and developing technical solutions, products, and standards based on current and desired system security architecture.
• Assessing and mitigating system security threats and risks throughout the program life cycle.
• Leading and/or contributing to the security planning, assessment, risk analysis, risk management, certification, and awareness activities for various system and networking operations.
• Collaborating with multiple internal technical experts and communicating with Program Managers and customer POCs when necessary regarding security issues of significant importance.
• Working closely with System Engineering, Test Engineering, and Integration teams to ensure that hardware and software architectures and implementations meet security requirements.
• Analyzing and assessing system implementation against multiple security compliance policies and recommending and implementing enhancements.
• Evaluating security solutions to ensure they meet customer specified requirements for processing information.
• Evaluating the impact of new development on the operational security posture of the system.
• Evaluating, reviewing, and testing critical software.
• Proposing, assessing, coordinating, implementing, and enforcing information systems security policies, standards, and methodologies.
• Auditing and assessing system security configuration settings using common methodologies and tools.
• Managing and enforcing security strategies and policies that affect various components of geographically distributed systems.
• Participating in Program Increment Planning and related agile team activities.
• Providing configuration management for security-relevant information system software.
• Serving as a subject matter expert in security architecture to include providing advice to Program Managers, customer technical experts, and internal program teams.
• Formulating security compliance requirements for new system features.
• Identifying and remediating security issues throughout the system.
• Supporting risk assessment, risk management, security control assessment, continuous monitoring, service design, and other IA program support functions.
• Working with development teams to enrich team-wide understanding of different types of vulnerabilities, attack vectors and remediation approaches.
• Planning and conducting security verification testing of relevant type 1 devices.
• Performing internal and external pen tests against systems to determine vulnerabilities and develop mitigation strategies.
• Performing web app pen tests.
• Performing vulnerability risk assessments.
• Performing physical pen tests and security engineering analysis and assessing the vulnerabilities/solutions for the pen testing.

• Bachelor's degree in Computer Science, Information Assurance, Information Security System Engineering, or a related discipline, and at least 12 years of relevant experience. Additional experience may be substituted for a degree.
• Extensive, demonstrated knowledge of and experience with common security tools, such as Nessus, NMAP, Wireshark,…